<?php

/**
 * This is the model class for table "{{news}}".
 *
 * The followings are the available columns in table '{{news}}':
 * @property integer $news_id
 * @property integer $news_type
 * @property string $news_title
 * @property string $news_content
 * @property integer $news_add_time
 */
class News extends CActiveRecord
{
	/**
	 * @return string the associated database table name
	 */
	public function tableName()
	{
		return '{{news}}';
	}

	/**
	 * @return array validation rules for model attributes.
	 */
	public function rules()
	{
		// NOTE: you should only define rules for those attributes that
		// will receive user inputs.
		return array(
		    array('news_title','required','message'=>'新闻标题不能为空'),
		    array('news_type','required','message'=>'新闻类型不能为空'),
		    array('news_add_time','required','message'=>'添加时间不能为空'),
			array('news_type', 'numerical', 'integerOnly'=>true),
			array('news_title', 'length', 'max'=>128),
			array('news_content', 'safe'),
			// The following rule is used by search().
			// @todo Please remove those attributes that should not be searched.
			array('news_id, news_type, news_title, news_content, news_add_time', 'safe', 'on'=>'search'),
		);
	}

	/**
	 * @return array relational rules.
	 */
	public function relations()
	{
		// NOTE: you may need to adjust the relation name and the related
		// class name for the relations automatically generated below.
		return array(
		);
	}

	/**
	 * @return array customized attribute labels (name=>label)
	 */
	public function attributeLabels()
	{
		return array(
			'news_id' => 'ID',
			'news_type' => '新闻类别',
			'news_title' => '新闻标题',
			'news_content' => '新闻内容',
			'news_add_time' => '添加时间',
		);
	}

	/**
	 * Retrieves a list of models based on the current search/filter conditions.
	 *
	 * Typical usecase:
	 * - Initialize the model fields with values from filter form.
	 * - Execute this method to get CActiveDataProvider instance which will filter
	 * models according to data in model fields.
	 * - Pass data provider to CGridView, CListView or any similar widget.
	 *
	 * @return CActiveDataProvider the data provider that can return the models
	 * based on the search/filter conditions.
	 */
	public function search()
	{
		// @todo Please modify the following code to remove attributes that should not be searched.

		$criteria=new CDbCriteria;

		$criteria->compare('news_id',$this->news_id);
		$criteria->compare('news_type',$this->news_type);
		$criteria->compare('news_title',$this->news_title,true);
		$criteria->compare('news_content',$this->news_content,true);
		if(!empty($this->news_add_time)){
    		$criteria->compare('news_add_time',">".(strtotime($this->news_add_time)-3600*24));
    		$criteria->compare('news_add_time',"<".(strtotime($this->news_add_time)+3600*24));
		}
		return new CActiveDataProvider($this, array(
			'criteria'=>$criteria,
		));
	}

	/**
	 * Returns the static model of the specified AR class.
	 * Please note that you should have this exact method in all your CActiveRecord descendants!
	 * @param string $className active record class name.
	 * @return News the static model class
	 */
	public static function model($className=__CLASS__)
	{
		return parent::model($className);
	}
}
